Trying to execute jnlp-inbound in in-house Kubernetes cluster, but it keeps in ContainerCreating, due to MountVolume.SetUp... no space left on device

Using Jenkins
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1

Hi all,

I’m trying to get my head wrapped around using the Kubernetes Plugin to deploy agents on a local Kubernetes cluster, but I never can get past the jnlp-container having a State: Waiting → Reason: ContainerCreating

The event log keeps telling me that a mount failed.

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I have verified that I am indeed not short of available space.
Cleaning up, using docker system prune --all --force does not help

I am running this on a vanilla kubernetes setup v 1.28.2. The Jenkins instance I am trying to execute the jobs on, is running on the cluster, and has no issue accessing the volumes.

I am using Jenkins v.2.423
The (currently) latest in all plugins

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How do I debug this issue?

2

Are you certain that kubernetes is using docker as its backend? If it is not, then pruning docker is not going to have any effect on disk space.

3

I am quite certain I am using docker.
Executing docker ps on any node, shows
The containers running kubernetes “stuff” as expected.